Alpha CB28, Do I need CH pressure to get hot water?

[markwm]

I'm doing 'maintenance' on my central heating. I've discovered a couple of dodgy hep2o grab rings and can't get them until tomorrow.

So obviously the CH pressure is zero and the boiler is flashing alternate green/red to tell me such.

The problem is whenever the CH loses pressure, we can't get any hot water from the taps.. I have the selector to water only but doesn't make a difference.

I can't open the filling loop to re-pressurize obviously as I have a fitting off so is there any way to get hot water whilst the CH is out of action?

 

[mrgas]

Not without repressururising the heating circuit.
If you have the fittings and pipe you can run a short bit of pipe between the flow and return, represurise and you will have hot water.

 

[picasso]

afraid not , you need to have the boiler pressurised to around 1 bar for the hot water to function , can you cap off the open ends ?